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What else can I help you with?
What should be considered when designing an addressing scheme that uses private IP address space?
The most important consideration is how many devices will be on the network / subnet.
Give an example of 2 private address in class A range?
Any address in the 10.0.0.0 - 10.255.255.255 range is considered a private (reserved) IP address in the class A address space.
Which is 172.15.0.0 address?
It is public IP address space. 172.16.0.0 - 172.31.255.255 is private (172.16.0.0/12)
What are special IPv4 addresses and what are they used for?
0.0.0.0 --> Current network (only valid as source address) 10.x.x.x --> Private address space for class A networks 14.x.x.x --> Public data network 127.0.0.1 --> Loopback (refers to own computer) 128.0.0.x --> Reserved (IANA) 169.254.0.x --> Zeroconf network 172.16.x.x through 172.31.x.x --> Private address space for class B networks 191.255.0.x --> Reserved (IANA) 192.0.0.x --> Reserved (IANA) 192.88.99.0 --> IPv6 to IPv4 relay 192.168.x.x --> Private address space for class C networks 198.18.0.0 --> Benchmark tests 223.255.255.0 --> Reserved (IANA) 224.0.0.x --> Multicasting 240.0.0.x --> Reserved 255.255.255.255 --> Broadcast I think I've got that right.
How many bits class A networks are reserved for private address space?
in Class A addresses the first bit identifies the class. The next 7 bits identify the network and the rest are the IP's that belong to that network. However these networks are then broken down using subnets . Class A networks are not given to private clients or small private organisations. So if you want to know how many bits are there for identifying hosts in a Class A network, the answer is 32-8 = 24 bits. However if you mean how many bits are reserved for hosts in your private network space, that depends on your subnet and router. Most routers use NAT to allow multiple hosts to use a single external IP address. I hope this answers your question :)
What is the difference between Static IP and Public IP?
A computer on the Internet is identified by its IP address. In order to avoid address conflicts, IP addresses are publicly registered with the Network Information Centre (NIC). Computers on private TCP/IP LANs however do not need public addresses, since they do not need to be accessed by the public. For this reason, the NIC has reserved certain addresses that will never be registered publicly. These are known as private IP addresses, and are found in the following ranges: From 10.0.0.0 to 10.255.255.255 From 172.16.0.0 to 172.31.255.255 From 192.168.0.0 to 192.168.255.255
What does VLSM allow a network administrator to do?
utilize multiple subnet masks in the same IP address space
What is the purpose of having a virtual address?
The purpose of having a virtual address is security through process isolation. A virtual address for each space is private and therefore increases security.
What types of networks uses network addresses assigned by the IANA?
To reduce congestion & optimize the IP address space.
What is the maximum amount of memory any single process on Windows can address and is this different from the maximum virtual memory for the system?
Answer Processes access virtual memory space, not physical memory. Applications never access RAM directly but only through the memory management interface of the processor. Depending on which version of Windows you are using, and how the program was compiled there is a different maximum ammount of addressable memory. All 32 bit processes on 32bit Windows have a 4GB virtual address space. The upper 2GB is common to all processes and is used by the system. The lower 2GB is private to each process and is inaccessable to all others. Unless the program was compiled as large address aware, in which case it will have 3GB of private address space. For 32bit processes on 64bit Windows, each process has 2GB private address space, unless compiled large address aware in which case it has 4GB private address space. For 64bit processes on 64bit windows each process has 8TB of private address space whilst compiled as large address aware. The 2GB address space limit remains for programs not compiled as large address aware. This is completely independent of the size of RAM or the pagefile. The system maps physical memory into this virtual address space according to both need and availability. At any given time the data in virtual memory space might be stored in RAM, on disk, or both. All of this is totally transparent to all applications. Frequently accessed data will be kept in RAM with the remainder left on disk.
What is the network called that spans a small area e.g. a building floor or room?
This network is called "Intranet". Whereas "Internet" is accessible all over the world, an "Intranet" is within a defined space (like an office building or a floor) and is usually a private network that only people inside that defined space can access.
Which is better to use class A or class B?
For public addresses, you use whatever is assigned to you. You probably won't be able to find available class A or class B networks, so you will use a class C network, or part of it. Soon you won't be able to get that, either (time to switch to IPv6).For a private network, a class A network - 10.0.0.0 /8 - gives you the greatest flexibility, because of the larger address space.
